S2.0.8 datetimepicker on"x" not fired (bug?)

[Jon Wilmoth]

I've tried several onX event attributes and none of them seem to fire with the 
S2.0.8 datetimepicker.  Is this a bug?

<s2:datetimepicker name="selectedEnd"
                                       displayFormat="MM/dd/yyyy"
                                       onfocus="alert('selectedEnd has focus!')"
                                       onclick="alert('selectedEnd clicked!')"
                                       onchange="alert('selectedEnd 
changed!')"/>